Audio Inputs; Audio Outputs; Composite Outputs - Omnia 6EX Installation And Operation Manual

When power is first applied, it takes approximately ten seconds to load the DSP code from the rear-panel PCMCIA
memory card. During system power-up, the front panel LCD screens display several status screens while the
operating software and DSP code is loaded. Once the main Omnia-6EX Main Menu is shown on the right screen,
and the Meter Screen is shown on the left display, the unit is ready for use.
Rear Panel Connections
Audio Inputs—Analog & Digital (Female XLR)
Balanced XLR-type connectors are used as input connectors for both the analog and AES-3 digital audio. Both
analog and digital input sources may be connected simultaneously, however, only the input source that has been set
in the Input menu is active. Analog/Digital Input source selection is done through the Input Source software
parameter setting in the Input Menu.
The stereo analog inputs are designed for standard +4dBu balanced signals. Pin 2 is Hot. The digital AES-3 inputs
(IN and EXT. SYNC) accept any sampling rate between 32kHz and 96kHz. No user adjustment is necessary on the
AES input since a high-quality sample rate converter is built into the unit. Individual channel gain and level setting
for both analog and digital is done using the Input Gain software parameter settings in the Input Menu.
A Note About Relative Phase: If the relative phase of your installation (including the Omnia-6EX) differs from
that of your existing system, your announcers may feel that they sound "weird" in their headphones. If this occurs,
then the relative phase of the processor is 180 degrees from what your air talent is used to. To remedy this, you can
either reverse the polarity of both of the analog inputs or change the Invert Both software parameter setting in the
Omnia-6EX Input Menu.
Audio Outputs—Analog & Digital (Male XLR)
Individual Left and Right analog outputs are available on two male XLR jacks. There are two AES outputs. They are
user configured for the conventional FM channel and/or the HD Radio/DAB signal. The outputs labeled OUT-1 and
OUT-2 provide selectable sampling rates. The analog output is derived from a D/A converter driven from whichever
digital output is desired, either FM or HD/DAB.
Note: Both the analog and digital AES-3 outputs are always active and can be used simultaneously.
Composite Outputs (BNC) (FM Mode Only)
These two low impedance outputs (Composite 1 and Composite 2) are each capable of driving up to 100 feet of RG-
58A/U coax cable. The output levels are individually adjustable between the outputs so the unit can operate as a
"composite DA" to drive a variety of equipment. The output levels and other stereo generator settings are set
through software parameters in the Encode menu. An internal jumper sets the output impedance to either 10 ohms
Omnia-6ex Use and Operation Manual – V: 1.10
19